RANDO® HDZ
ISO 15, 22, 32, 46, 68, 100
PRODUCT DESCRIPTION
Rando® HDZ oils are formulated with premium base oil
technology and designed to give robust protection to
hydraulic pumps.
CUSTOMER BENEFITS
Rando HDZ oils deliver value through:
• High oxidation stability — Long service life in
high pressure service.
• Protection against rust and corrosion — Gives
excellent protection against corrosion of both copper
and steel. Passes the ASTM D665A distilled water
rust test and ASTM D665B salt water rust test.
• High viscosity index — Minimum change in
viscosity over a wide range of operating
temperatures.
• Foam inhibition — Contains special foam
suppressant.
• Excellent antiwear properties — Provides
excellent wear protection.
• Good stability — in the presence of water in the
ASTM D2619 Hydrolytic Stability Test and in the
presence of copper and steel in the MAG Cincinnati
Machine Thermal Stability Test.
• Fast water separation — Protects against rust
problems by fast release of water.
• Good filterability — Excellent thermal and
hydrolytic stability helps prevent formation of
deposits which may interfere with filtration in
equipment having close tolerances.
FEATURES
Rando HDZ oils incorporate antiwear additives,
oxidation and corrosion inhibitors, foam and aeration
suppressants, and a shear stable viscosity index
improver.
Hydraulic systems, due to the nature of
their operation, experience accelerated
wear unless they are protected by clean,
high quality antiwear hydraulic oils.
Surging pressures in pumps and valves
can increase metal-to-metal contact unless antiwear
protection is present. The antiwear additives in Rando
HDZ oils plate out on the metal surfaces. This plating
minimizes metal-to-metal contact, which is most
severe in vane-, piston-, and gear-type pumps. As
hydraulic pressures increase over 1000 psi, the need
for antiwear protection increases proportionally.
In laboratory efficiency testing, Rando HDZ Oils
provided up to 5% improvement in overall hydraulic
pump efficiency when compared to a typical
monograde hydraulic oil like Hydraulic Oil AW (a lower
VI product with VI<105).
APPLICATIONS
Rando HDZ oils are versatile lubricants available in
multiviscosity ISO 15, 22, 32, 46, 68, and 100 grades.
The multiviscosity feature promotes even and
continuous power transmission over a wide
temperature range with a minimum of shudder, and
maximum accuracy.
They are recommended for hydraulic or circulating oil
systems, including marine on-deck machinery,
hydraulic actuated loading bins, or equipment that
require a wider operating temperature as compared to
a single viscosity grade oil.
Rando HDZ oils are approved for:
• Eaton-Vickers I-286-S, M-2950-S, 35VQ25A (ISO
32, 46, 68)
• MAG Cincinnati, Cincinnati Machine P 68 (ISO
32), P 70 (ISO 46), P 69 (ISO 68)
• Parker Hannifin (Denison) HF0, HF1, HF2, using
T6H20C pump (ISO 32, 46, 68)
Rando® HDZ — Continued
Always confirm that the product selected is consistent with the original equipment manufacturer's recommendation for the equipment
operating conditions and customer's maintenance practices.
13 February 2013
IO-174
13-52
Rando® HDZ oils meet the requirements of:
• Arburg (ISO 46)
• ASTM D6158, HV (ISO 15, 22, 32, 46, 68, 100)
• Bosch Rexroth (ISO 32, 46, 68)
• DIN 51524-3 (ISO 15, 22, 32, 46, 68, 100)
• Frank Mohn, Framo hydraulic cargo pumping
(ISO 46)
• ISO 11158 L-HV (ISO 15, 22, 32, 46, 68, 100)
• JCMAS HK-1 (ISO 32, 46)
In a clean, dry environment, Rando HDZ ISO 15, 22,
32, 46, 68, and 100 typically meet a dielectric strength
of 35 kVa (ASTM D877b).
Refer to the service manual of the equipment to ensure
that the minimum fluid viscosity requirements are met
at the highest operating temperature. Please consult
with your equipment manufacturer if equipment is
operating outside normal operating conditions.
Do not use in high pressure systems in the vicinity of

TYPICAL TEST DATA
Minor variations in product typical test data are to be expected in normal manufacturing.
15 22 32 46 68 100
Product Number 273282 273264 273260 273261 273262 273263
MSDS Number 23543 23537 23537 23537 23537 23537
API Gravity 28.4 31.7 33.1 32.2 31.1 30.9
Viscosity, Kinematic
cSt at 40°C
cSt at 100°C
16.0
3.9
22.5
5.1
32.0
6.3
46.0
8.2
68.0
11.0
100.0
14.2
Viscosity, Saybolt
SUS at 100°F
SUS at 210°F
81.4
39.1
108
43.0
150
46.9
214
53.1
316
62.8
464
74.8
Viscosity Index 140 160 153 153 154 145
Flash Point, °C(°F) 150(302) 188(370) 220(428) 216(420) 212(414) 232(450)
Pour Point, °C(°F) -54(-65) -53(-63) -50(-58) -45(-49) -42(-44) -39(-38)
Brookfield Viscosity,
ASTM D2983, cP @ -20°C 500 750 1290 2330 4450 8040
Brookfield Viscosity,
ASTM D2983, cP @ -30°C 1660 2340 4900 9120 19300 -
Brookfield Viscosity,
ASTM D2983, cP @ -40°C 6920 9120 25100 - - -
Oxidation Stability
Hours to 2.0 mg KOH/g acid
number, ASTM D943 — — >5000 >5000 >5000 >3000
Dielectric Strength, kVa, ASTM D877b
a Dielectric strength value applies only to "point of manufacture" of packaged products produced at a Chevron
manufacturing facility. (Does not apply to bulk packaging). The oil will quickly lose its high dielectric strength value
when exposed to contamination and to very small amounts of moisture and water.
b Industry standard test method for measuring kV values is not precise and test results can differ significantly.
35 35 35 35 35 35